MASTER: FIREX-AQ Airborne Campaign, Western-Central USA, Summer 2019

This dataset includes Level 1B (L1B) and Level 2 (L2) data products from the MODIS/ASTER Airborne Simulator (MASTER) instrument. The spectral data were collected as part of the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) program during 21 flights aboard a NASA DC-8 aircraft over the central and western U.S. from 2019-07-22 to 2019-09-03. The purpose of these flights was to measure emissions and to characterize the aerosols in the smoke plume above and downwind of the fire, and to determine the overall spatial extent of wildfires and prescribed fires. Data products include L1B georeferenced multispectral imagery of calibrated radiance in 50 bands covering wavelengths of 0.460 to 12.879 micrometers at approximately 20-meter spatial resolution. Derived L2 data products are emissivity in 5 bands in thermal infrared range (8.58 to 12.13 micrometers) and land surface temperature. The L1B file format is HDF-4, and L2 products are provided in ENVI and KMZ formats. In addition, the dataset includes the flight path, spectral band information, instrument configuration, ancillary notes, and summary information for each flight, and browse images derived from each L1B data file.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 23, 2026, 00:38 (UTC)
Created April 1, 2025, 17:08 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id e719b1b0-e782-4cf8-a8d3-9404af94f2f0
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1941
license https://www.usa.gov/government-works
modified 2026-06-15T22:16:00Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 2623e9f1967e85a965c0001070a85a40bbcba85384f615ca6d270b6cb6769a43
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -121.506, "NorthBoundingCoordinate": 48.9231, "EastBoundingCoordinate": -83.1585, "SouthBoundingCoordinate": 30.7868}]]
temporal 2019-07-22/2019-09-03
theme {"Earth Science"}